PLZ HELP BRAINLIEST Which of the following tables of values could NOT represent a function?

x-valuesy-values
113
422
731
10 40

x-valuesy-values
6 1
12 1
19 1
231

x-valuesy-values
1 8
11 9
1 10
3 11

x-valuesy-values
-234
-138
-5 12
0 290

Evaluate cos2θ for cosθ = square root of 3/2

Astrid spent $36 on new shoes. this was $12 less than twice what she spent on a new skirt. part a: which equation would solve for how much she spent on the skirt? part b: solve the equation in the workspace provided below. how much did astrid spend on her skirt?

Candice uses the function f(t)=t+100−−−−−−√ to model the number of students in her after-school program. the variable t represents days and f(t) represents the number of students. how many days does it take for there to be 15 students in her program? a. 225 days b. 125 days c. 325 days d. 115 days